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#include <iostream>
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#include <fstream>
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#include <vector>
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using namespace std;
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void InputStudentInfo(vector<pair<string, double>> &students) {
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string name, gender;
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double score;
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cout << "该系统只支持百分制成绩的平均分计算"<<endl;
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cout << "请输入学生的姓名、性别和分数（输入'end'结束输入）: ";
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while (cin >> name >> gender >> score) {
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if (name != "end") {
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students.push_back(make_pair(name, score));
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} else {
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break;
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}
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cout << "请继续输入学生的姓名、性别和分数（输入'end'结束输入）: ";
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}
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}
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void CalculateAverageScore(const vector<pair<string, double>> &students, vector<double> &averages) {
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for (const auto &student : students) {
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if (student.second >= 60) {
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// 假定性别为'm'表示男性，'f'表示女性
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if (student.first[0] == 'm') {
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averages[0] += student.second;
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averages[1]++;
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} else if (student.first[0] == 'f') {
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averages[2] += student.second;
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averages[3]++;
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} else {
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cout << "未知性别，跳过该学生。" << endl;
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}
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} else {
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cout << "分数低于60分，跳过该学生。" << endl;
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}
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}
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}
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void OutputAverageScore(const vector<double> &averages) {
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cout << "男性学生的平均分数为: " << averages[0] / averages[1] << endl;
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cout << "女性学生的平均分数为: " << averages[2] / averages[3] << endl;
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}
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void SaveToFile(const vector<double> &averages, const string &filename) {
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ofstream outfile(filename);
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outfile << "男性学生的平均分数为: " << averages[0] / averages[1] << endl;
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outfile << "女性学生的平均分数为: " << averages[2] / averages[3] << endl;
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outfile.close();
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}
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int main() {
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vector<pair<string, double>> students;
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vector<double> averages(4, 0); // 分别为男性平均分、男性人数、女性平均分、女性人数
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InputStudentInfo(students);
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CalculateAverageScore(students, averages);
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OutputAverageScore(averages);
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SaveToFile(averages, "student_stats.txt");
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return 0;
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}
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